A small mod which adds 4 new items to the game. An ingot, a hilt, a blade and a sword, which all can be crafted at the crafting table.
I made a small resource pack containing a reskin for the crimson stem log, so it's black instead of purple. Using it will also make the sword black. It can be found here: https://www.curseforge.com/minecraft/texture-packs/ancient-crimson-greatsword-resource-pack
The ingot can be crafted by combining 3 gold ingots with 3 crimson hyphaes and 3 netherite ingots.
The hilt can be crafted by combining a gold nugget with 2 obsidian, a bucket of lava, 2 crimson ingots, 2 magma cream and 1 blaze powder.
The blade can be crafted by combining 9 crimson ingots.
The sword can be crafted by combining the hilt with the blade.